Succulents for Color

Fresh from a day spent among the spectacular world of succulents I’m excited about using these unique plants in new ways. Succulent Gardens in Moss Landing hosted a day of speakers, tours and demonstrations showcasing these  fabulous, unearthly-looking plants. I’ve always liked succulents grown along a walkway, around accent boulders or tucked between perennials. Now I’m creating awesome vignettes in containers that I can move under an overhang to protect from excess rainfall and frost if necessary. There are so many impressive varieties to choose from. Here are some of my favorites that I enjoyed on the tour.

Many showy succulents need only a bit of protection during our winters.  Aeonium decorum Sunburst is one of the showiest species with spectacular variegated cream and green 10" rosettes. This plant  grows 2′ tall and looks terrific with black Voodoo aeonium in a pot. Sunburst is hardy to 28 degrees while Voodoo will go down to 32 degrees. Aeoniums do so well in our climate as they come from Arabia, East Africa and the Canary Islands where winter rainfall is the norm.

Aeoniums propagated from tissue culture are now affordable. There was a time when a 2" seedling cost upwards of $100. Tissue culture involves taking the cells from the core of the plant and growing it in a sterile medium like agar. The resulting plants are exact copies of the mother plant and mature quickly.

Echeveria grow naturally in higher elevations of central Mexico to northwestern South America and so do well in our our cool wet winters. After Glow is frost tolerant and looks to be painted with florescent paint. There are spectacular hybrids being developed every year. These are not as hardy as the traditional hens and chicks but well worth the effort to find a place where they can survive a freeze. Frilly Mauna Loa sports turquoise and burgundy foliage while echeveria Blue Curls looks like an anemone in a tide pool.

Aloes from South Africa and Arabia are old world plants. Many like the medicinal aloe vera are frost tender but some, like the tree-like aloe plicitilis, are hardy down to 25 degrees and look great either in the garden or in pots.  Did you know the Egyptians used aloe in the mummification process or that there are no known wild populations of aloe? In South Africa, an aloe called ferox is used in the same way as aloe vera for burns and stomach problems. This variety is hardy down to 20 degrees and blooms in January.

When potting succulents in containers, be sure to use a quality potting mix as good drainage is essential. There are special succulent mixes available but succulents are forgiving as long as the soil drains freely. A great tip I got from Debra Baldwin, author of Designing with Succulents and Succulent Container Gardens, is to add Dry Stall to regular potting soil. Dry Stall is a horse bedding product made with pumice. It is similar to perlite although heavier and less expensive.

Her recipe for succulent soil mix differs with the size of the leaf. For fat, juicy leaves use 75-90% pumice of perlite to potting soil. Fine-leaved varieties thrive in a soil mix of 25% pumice to 75% soil and all the rest get a mixture of 50/50. Don’t add gravel or clay shards at the bottom if planting in a container as this impedes drainage. It work best to fill the entire pot with soil, top to bottom.

Because succulents use little water they are easy to care for. If you hate the idea of having to water after you get home from work, create the garden of your dreams with succulents.

Squirrels Control for Sustainable & Interesting Bulbs

My resident squirrels are busy burying acorns for the winter. On the go from first light in the morning until dusk they scurry up the oak trees to collect this prized food source and then deposit them in the ground and in the pots on my deck where they will surely forget where most of them are. Their antics are frustrating because I want to start planting bulbs sooner than Thanksgiving this year. I usually have to wait until later in the season when the squirrels have finished loading up their pantry to get them in the ground. Daffodils and narcissus are safe but what would spring be without  all the other gorgeous bulbs to welcome in the season?

This year I’m going to try some different varieties of bulbs and to foil the squirrels I"m going to plant them really deep in areas that have excellent drainage. Squirrels rarely dig far under the surface so they aren’t likely to reach the bulbs. If you have less than stellar drainage, your bulbs will rot if you plant them deeply, so use chicken wire cages or gopher baskets when you plant them. Next year when they emerge from the soil, if the squirrels start eating the tops of the stems, spray the buds daily with hot pepper spray. All mammals except humans hate hot peppers. I’ve also heard that paprika and egg shells deter them.

I love those huge, showy tulips as well as the new colors of daffodil and narcissus coming out each year. Can’t live without them. But I want to add to the show next spring. Maybe I’ll plant Spring Starflower or Ipheion. Their starry white flowers bloom over a long period in spring and they naturalize easily. Spring Snowflake ( leucojum vernum ) will also naturalize in the garden. The flowers are small and bell shaped, white with a green or yellow spot and have a slight fragrance. And I want to include some species tulips. They will rebloom year after year just like they do in the wild in Europe, North Africa and Asia.

Another bulb I’ve wanted to grow for a long time is Ixia viridiflora. They need to be completely dry in summer so planting in pots will be perfect for this most striking and unusual bulb. Few plants can beat it for sheer brilliance of flower. Each flower is a brilliant turquoise green with a purple-black eye in the middle. The dark eye is caused by the deep blue sap of the cells of the upper epidermis. The green color is due to the effects of light being refracted from the cell wall and granules embedded in the pale blue cell sap. Amazing flower.

I think tucking several huge allium bulbs among clumps of summer-flowering perennials will make quite a statement next year and the deer generally avoid them as they are in the garlic family. The flowers from in clusters and are best known in the round pom-pom form, but they can be star or cup-shaped or nodding pendant-shaped. They look great with foxglove, monarda and hardy geraniums. The flower heads can be left on the plant to dry as they look attractive in the garden and can be cut for arrangements.

A bulb native to our area that I’m also interested in trying is Tritileia or Triplet Lily. There are several species of this brodiaea bulb found here in grasslands and serpentine soils. They are undemanding plants and make good cut flowers, lasting for 7-10 days in water.

Other interesting bulbs that I want to try include  hyacinthoides, hermodactylus tuberosa and bellevalia. All of them are beautiful. Don’t let October and November go by without planting a few bulbs to enjoy next spring.
 

Better Choices for Old Favorites

Thinking about planting a new area or redoing a part of your garden that has gotten out of control? If many of your old favorites just get too big, insects and diseases plague them or they  take too much time to prune you need some new favorites.  What’s a gardener to do these days when we want our yards to be sustainable?   Here are some substitutions for good plants gone wrong. This time it’s gonna be the right plant in the right spot.

Phormiums have been popular for many years now. This plant from New Zealand looks great in low water landscapes providing architectural interest but usually grows much wider and taller than anticipated and next thing you know it’s taken over. One of the cultivars that behaves itself is called Jester. This phormium has beautiful 2-3 ft long pinkish leaves that have an orange midrib and lime green bands near the leaf margins. Combine it with teucrium  chamaedrys germander for an awesome combination.

If you want a similar fountain-like plant in your landscape that never reverts to plain green, try a cordyline Festival Grass. Vivid burgundy red leaves to 2-3 ft tall arching over so the tips reach the ground. Tiny pale lilac flowers appear in the summer, with a jasmine-like fragrance.  Plant in full sun to part shade and water regularly. Plants in shade have a darker more purple color while sun grown plants have more red.

What’s deer resistant with fragrant, gold foliage, uses little water once established and stays compact? Danny’s Sport Breath of Heaven is a bushy, finely textured shrub of the citrus family. They have slender stems and tiny narrow leaves which give off a spicy, sweet scent when crushed. Bright yellow new growth is upright, growing to 3- 5 ft tall. They thrive in sun or light shade and are hardy to around 18 degrees or less. Use it as a foundation plant, informal hedge or specimen plant. They are very showy in the landscape.

Ornamental oregano is a great perennial to use in a border or to tuck between other plants. Most oregano varieties are wonderful while in bloom but offer little interest after the main show is over. Oregano Santa Cruz is a better choice. Antique-toned, dusty rose-colored hop-like flowers, are offset by bright green calyxes and remain all summer on branched red stems. This plants grows 18" – 24" high and 3 ft wide. For a pleasing fusion of color, combine it with penstemon Blackbird or another rich burgundy penstemon. Add a grass such as muhlenbergia capillaris to complete the vignette.

Everybody loves clematis. They come in so many styles but how do you prune them for best flower production? Plant a Sweet Autumn Clematis ( clematis terniflora ) and your worries are over. They are a gorgeous sight now covered in pure white, lightly fragrant flowers. Later in the fall the vine will become a silvery mass of fluffy seed heads. This small-flowered species looks impressive covering an upscale arbor or even embellishing a plain fence of garden shed. It blooms on new growth so you can easily keep it in check by cutting stems back to 12" in the spring. It will bloom well in partial shade, too.

A smaller cultivar of the old favorite oak-leaf hydrangea is Sikes Dwarf. This lovely plant provides year-round seasonal interest.  At this time of year their huge, whitish-pink conical flowers turn a papery soft tan color. In later autumn, the leaves will take on striking shades of crimson and bronze-purple, and through winter the dry flowers persist above the branches lined with exfoliating copper-brown, cinnamon and tan bark. Oakleaf hydrangeas are fast growing and accept full sun or partial shade in rich evenly moist soil. They’re real lookers in the garden.